JPH074571U - Automatic toilet cleaning device - Google Patents

Abstract

(57) [Summary] [Purpose] In an automatic toilet bowl cleaning device, supply a large amount of flush water to the toilet bowl during stools and a small amount of flush water during urination.
Try to reduce the wasteful consumption of wash water. [Structure] In a toilet bowl automatic cleaning device of a type that automatically drives a valve for supplying and shutting off toilet flush water by operating a valve drive unit, the toilet seat 14 is at a closed position or an open position. Toilet seat position detection means 7 for detecting whether there is
0 to operate the drive unit to supply a large amount of flush water to the toilet when the toilet seat 14 is in the closed position and to operate the valve drive unit to supply a small amount of flush water when the toilet seat 14 is in the open position. To

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to an automatic toilet bowl cleaning device for automatically supplying cleaning water to the toilet bowl.

[0002]

[Problems to be solved by conventional techniques and devices]

 Conventionally, in a toilet bowl cleaning device, when a handle attached to the outer surface of a cleaning tank is manually rotated, an arm inside the cleaning water tank that is integrally rotated is rotated, and a chain is attached to the tip of the arm. The connected float valve is lifted to open the drain port at the bottom of the wash water tank.In recent years, a valve drive unit including a motor is attached to the side wall of the wash water tank to connect the motor to the arm. An automatic toilet cleaning device was developed in which the motor is rotated to automatically rotate the arm and lift the float valve to discharge the cleaning water inside the cleaning water tank into the toilet. ,It is used.

Thus, in the conventional automatic cleaning device of this type, two types of switches for large use and small use are provided so that a large amount of washing water is supplied to the toilet bowl when the switch for large use is operated. It is known that the valve drive unit is operated and the valve drive unit is operated so as to supply a small amount of flush water to the toilet bowl when the switch for small amount is operated.

On the other hand, it is also considered that the valve drive unit is automatically operated by a signal from the human body detection sensor instead of such a switch operation. That is, when the toilet user leaves the toilet, this is detected and the valve drive unit is automatically activated to supply flush water to the toilet.

In this case, there is an advantage that the switch operation is unnecessary and the toilet cleaning operation can be performed in a non-contact manner. However, in the case of the automatic cleaning device with this kind of human body detection sensor, the flush water can be recognized without distinguishing stool or urine. There is a problem in that a large amount of washing water is wasted when urinating.

[0006]

[Means for Solving the Problems]

 The present invention has been made to solve such a problem, and its gist is to perform a toilet flush by automatically driving a valve for supplying and blocking toilet flush water by operating a valve drive unit. In the automatic toilet bowl cleaning device of the type, a toilet seat position detecting means for detecting whether the toilet seat is in the open position or the closed position is provided, and when the toilet seat is in the closed position, a large amount of flush water is supplied to the toilet bowl. Thus, the valve drive unit is operated, and the valve drive unit is operated so as to supply a small amount of washing water when in the open position.

[0007]

[Action and effect of the device]

 As described above, the present invention determines whether the toilet seat is in the closed position or the open position, and flushes a large amount of flush water when the toilet seat is in the closed position, and flushes a small amount of flush water when the toilet seat is in the open position. The valve drive unit is operated as described above, and according to the present invention, it is possible to identify the stool and the urine and to flow an appropriate amount of washing water. It is possible to prevent water from flowing into the water and save water.

[0008]

【Example】

 Next, an embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1, 10 is a toilet bowl, 12 is a toilet bowl body, 14 is a toilet seat, 16 is a toilet lid, 18 is a local cleaning device for ejecting cleaning water from a nozzle 20 toward a human body local area, and a human body detection sensor 22 (seating sensor) Is equipped with.

The local cleaning device 18 includes a nozzle valve 24 (see FIG. 4) for supplying and blocking cleaning water to the nozzle 20, a hot water heater 26 for warming the cleaning water, and hot water directed to the nozzle 20. It has a pump 28 for sending out, a warm air heater 30 and a warm air motor 32 for blowing warm air to the human body part for drying.

Each element of these local cleaning devices is electrically connected to the control unit 36. Further, a switch 38 for operating various functions is connected to the control unit 36. The human body detection sensor 22 also serves as a human body detection sensor in an automatic toilet cleaning device described later.

A washing water tank 40 has an arm 42 arranged therein as shown in FIG. The tip of the arm 42 is bent in an L-shape, and a float valve 46 is connected to the lower end of the arm 42 via a chain 44 so that the float valve 46 can be lifted by the rotational movement of the arm 42.

The other end of the arm 42 is connected to the valve drive unit 48. The valve drive unit 48 is a part that drives the arm 42 to rotate and lifts the float valve 46, and has a housing 50 attached to the outer surface of the wash water tank 40. Is provided.

A worm gear 54 is provided on the output shaft of the valve drive motor 52, and the valve drive motor 52 is operatively connected to the arm 42 via the worm gear 54 and transmission gears 56, 58, 60. There is.

The valve drive unit 48 transmits the rotational drive force of the valve drive motor 52 to the arm 42 via the gears 54, 56, 58 and 60, and thereby rotates the arm 42 to rotate the float valve 46. To open the drain port at the bottom of the tank.

The valve drive motor 52 is electrically connected via a lead wire 62 to a control unit 36 arranged in the main body of the local cleaning device 18. That is, the control unit 36 also serves as the control unit in the automatic toilet bowl cleaning device.

As shown in FIG. 3, the toilet seat 14 is adapted to rotate integrally with the rotary shaft 64 at the base end side. A magnet 66 having an N pole and an S pole is fixedly mounted on the rotary shaft 64, and a Hall element 68 is fixedly disposed at a position facing the magnet 66.

The hall element 68 outputs an electric signal according to the strength of the magnetic field. In this example, the magnet 66 and the hall element 68 constitute a toilet seat position detection sensor 70. The sensor 70 is connected to the control unit 36.

The magnet 66 and the Hall element 68 are arranged such that the N pole and the Hall element 68 are arranged so that the Hall element 68 and the S pole of the magnet face each other when the toilet seat 14 is closed so that the N pole and the Hall element 68 face each other. It is arranged to face each other.

That is, when the toilet seat 14 is stationary with the hall element 68 facing the south pole, it is determined that the toilet seat 14 is in the closed position, and the toilet seat 14 faces with the hall element 68 facing the north pole. When stationary, it is determined that the toilet seat 14 is in the open position.

As shown in FIG. 3B, a protrusion 72 is provided near the rotating shaft 64 of the toilet seat 14, and the protrusion 72 blocks the optical path when the toilet seat 14 is in the closed position or the open position. It is possible to provide the photoelectric sensor 74 in such a position, and the protrusion 72 and the photoelectric sensor 74 can constitute the toilet seat position detection sensor 70. Also, the magnet 76 is attached to the tip of the protrusion 72. A toilet seat position detection sensor is provided by providing a reed switch so as to face the magnet 76 when the toilet seat 14 is in the closed or open position to detect the open / closed position of the toilet, or by other means. It is also possible.

In the apparatus of this example, the local cleaning device 18 is configured to actually operate only when the human body detection sensor 22 detects a human body, and also in the automatic toilet bowl cleaning device. The valve drive unit 48 is operated based on the human body detection by the human body detection sensor 22 to supply the wash water to the toilet bowl 10.

Specifically, in this automatic cleaning device, when the human body detection sensor 22 detects that the toilet user has left the toilet bowl 10, the valve drive unit 48 is activated by a signal from the control unit 36, The wash water is discharged from the drain port of the wash water tank 40 toward the toilet bowl.

At this time, when the signal from the toilet seat position detection sensor 70 is the closed position signal indicating that the toilet seat 14 is in the closed position, the control unit 36 operates the valve drive unit 48 to discharge a large amount of washing water. In addition, the valve drive unit 48 is operated so as to discharge a small amount of washing water when the open position signal which indicates that the toilet seat 14 is in the open position.

As a result, a large amount of wash water is flushed in the case of stool and a small amount of wash water is flushed in the case of urine, and an appropriate amount of flush water is supplied to the toilet bowl depending on the stool or urine.

In order to operate the valve drive unit 48 so that a large amount of cleaning water flows out, this is done by rotating the arm 42 in a large angular range, that is, by increasing the rotation amount of the gear. The valve drive unit 48 may be operated so as to rotate the gear a little when a small amount of cleaning water is made to flow.

Although the embodiment of the present invention has been described in detail above, this is merely an example. For example, the present invention can be applied to other various types of automatic cleaning devices, and the human body detection sensor 22 can be provided in the housing 50 of the valve drive unit 48 as shown in FIG.

In addition, the present invention can be applied to an automatic cleaning device in which the cleaning water is directly supplied to the toilet from a water pipe in some cases, and is based on the knowledge of those skilled in the art without departing from the spirit of the invention. It can be configured with various modifications.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a toilet bowl to which the present invention is applied.

FIG. 2 is a view showing a valve drive unit, which is a main part of an automatic cleaning device according to an embodiment of the present invention, together with a cleaning water tank.

FIG. 3 is a diagram showing a position detection sensor for a toilet seat in FIG.

4 is a block diagram showing elements of the local cleaning device and the toilet automatic cleaning device in FIG. 1. FIG.

FIG. 5 is a view of a main portion of another embodiment of the present invention.

[Explanation of symbols]

 10 Toilet bowl 14 Toilet seat 22 Human body detection sensor 40 Wash water tank 46 Float valve 48 Valve drive unit 52 Motor 70 Toilet seat position detection sensor

Claims (1)

[Scope of utility model registration request] 1. An automatic toilet flushing device of the type in which a valve for supplying and shutting off toilet flushing water is automatically driven by the operation of a valve drive unit to flush the toilet bowl, and the toilet seat is in an open position or a closed position. A toilet seat position detecting means for detecting whether the toilet seat is in a closed position, the valve drive unit is operated to supply a large amount of cleaning water to the toilet when the toilet seat is in a closed position, and a small amount of cleaning water is in an open position. An automatic cleaning device for a toilet, wherein the valve drive unit is operated so as to supply the toilet.